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/15 COMPUTATIONAL QUESTIONS 1. Anundisturbed soil sample has a specific gravity of27, anostre cottnt of 10.5% and a void ratio of 0.63. What is the degree of saturation? (5 pts) 2. A soil sample has a total mass of 23.3g, a volume of 12 cm, and an oven dry mass of 212g The volume of solids in the soil sample is 848 cm. What is the void ratio of this soil sample? (S pts.) 3. 2 soils samples were brought into the lab for classification. Using the information below, classify (A) with USCS and (B) with AASHTO classification systems (10 pts.) (A) All material passing s4 sieve. Particles passing 00 urve is 9% Cr61. Ce-3.4, see part B for Aterberg Test resalts (B) Particles retained on s4 sieve is 65%. Sand particles are 20% LL-38. PL-16. 4. Subsurface exploration indicates that a level site has a 10-ft upper layer of sand. The groundwater table is at the ground surface. The unit weight of sand is 135 pef. What is the effective stress at a depth of 10-t? (5 pts)
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